Home / 3,981,313,891.20-5,971,970,836.80-1,942,882,147.20

Finding the Fourth Proportional to 3,981,313,891.20, 5,971,970,836.80 and 1,942,882,147.20

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Solution

The fourth proportional to 3,981,313,891.20, 5,971,970,836.80 and 1,942,882,147.20 is: 2,914,323,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,313,891.20 : 5,971,970,836.80 = 1,942,882,147.20 : x
  2. Step 2: Convert to fraction form
    3,981,313,891.20/5,971,970,836.80 = 1,942,882,147.20/x
  3. Step 3: Cross multiply
    3,981,313,891.20x = 5,971,970,836.80 × 1,942,882,147.20
  4. Step 4: Simplify right side
    3,981,313,891.20x = 11,602,835,522,417,766,400
  5. Step 5: Solve for x
    x = 11,602,835,522,417,766,400/3,981,313,891.20
  6. Step 6: Final answer
    x = 2,914,323,220.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.